| CAS No. | 83167-73-1 |
| Molecular Formula | C19H19NO8 |
| Molecular Weight | 389.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 389.36 g/mol gives 4-Nitrophenyl 4-6-O-benzylidene-β-D-glucopyranoside distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Nitrophenyl 4-6-O-benzylidene-β-D-glucopyranoside (CAS 83167-73-1) is a high-purity analytical reference standard with the molecular formula C19H19NO8 and a molecular weight of 389.36 g/mol.
Based on its molecular formula C19H19NO8, 4-Nitrophenyl 4-6-O-benzylidene-β-D-glucopyranoside contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 389.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
| Molecular Formula | C19H19NO8 |
| Molecular Weight | 389.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 1 |